4
Twisted 2.5.0 is a major feature release, with several interesting new
5
developments and a great number of bug fixes. Some of the highlights
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* AMP, the Asynchronous Messaging Protocol, was introduced. AMP is
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a protocol which provides request/response semantics over a
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persistent connection in a very simple and extensible manner.
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* An Epoll-based reactor was added, which can be used with twistd or
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trial by passing "-r epoll" on the command line. This may improve
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performance of certain high-traffic network applications.
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* The 'twistd' command can now accept sub-commands which name an
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application to run. For example, 'twistd web --path .' will start a
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web server serving files out of the current directory. This
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functionality is meant to replace the old way of doing things with
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'mktap' and 'twistd -f'.
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* Python 2.5 is now supported. Previous releases of Twisted were
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broken by changes in the release of Python 2.5.
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* 'inlineCallbacks' was added, which allows taking advantage of the
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new 'yield' expression syntax in Python 2.5 to avoid writing
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callbacks for Deferreds.
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In addition to these changes, there are many other minor features and
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a large number of bug fixes.
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- log.err can now take a second argument for specifying information
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about an error (#1399)
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- A time-simulating test helper class, twisted.internet.task.Clock,
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- Trial docstring improvements were made (#1604, #2133)
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- New SSL features were added to twisted.internet.ssl, such as client
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- Python 2.5 is now supported (#1867)
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- Trial's assertFailure now provides more information on failure (#1869)
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- Trial can now be run on tests within a zipfile (#1940)
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- AMP, a new simple protocol for asynchronous messaging, was added (#1715)
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- Trial's colorful reporter now works on win32 (#1646)
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- Trial test modules may now dynamically construct TestSuites (#1638, #2165)
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- twistd can now make use of plugins to run applications (#1922, #2013)
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- Twisted now works with the latest (unreleased) zope.interface (#2160)
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- An epoll-based reactor, epollreactor, was added. It is selectable
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with the -r options to twistd and trial (#1953)
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- twistd and trial now use the plugin system to find reactors which
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can be selected (#719)
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- twisted.internet.defer.inlineCallbacks was added. It takes
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advantage of Python 2.5's generators to offer a way to deal with
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Deferreds without callbacks (#2100)
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- Traceback formatting in Trial was improved (#1454, #1610)
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- twisted.python.filepath.FilePath.islink now actually returns True when
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- twisted.plugin now no longer raises spurious errors (#926)
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- twisted.pb Cacheables may now be new-style classes (#1324)
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- FileDescriptor now deals with producers in a more
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interface-compliant and robust manner (#2286, #811)
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- "setup.py build" and other setup.py commands which don't actually
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install the software now work (#1835)
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- wxreactor has had various fixes (#1235, #1574, #1688)
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Deprecations and Removals
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-------------------------
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- The old twisted.cred API (Perspectives, Identities and such) was
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- twisted.spread.newjelly was removed (#1831)
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- Various deprecated things in twisted.python.components were
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removed: Interface, MetaInterface, getAdapterClass, and
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getAdapterClassWithInheritance (#1636)
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- twisted.enterprise.xmlreflector was removed (#661)
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- mktap is slowly on its way out, now that twistd supports plugins. It
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is not yet officially deprecated (#2013)
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- tkmktap was removed, because it wasn't working anyway (#2020)
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- reactor.iterate calls made inside of a Trial test case are
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- twisted.internet.qtreactor was removed: It has been moved to a
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separate project. See http://twistedmatrix.com/trac/wiki/QTReactor
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- threadedselectreactor is now not a directly usable reactor; it is
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only meant to help in writing other reactors (#2126)
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- twisted.python.reflect.funcinfo is deprecated (#2079)
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- twisted.spread.sturdy, which was already completely broken, was
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The following changes are minor or closely related to other changes.
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- #1783, #1786, #1788, #1648, #1734, #1609, #1800, #1818,
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#1629, #1829, #491, #1816, #1824, #1855, #1797, #1637, #1371,
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#1892, #1887, #1897, #1563, #1741, #1943, #1952, #1276,
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#1837, #1726, #1963, #1965, #1973, #1976, #1991, #1936, #1113,
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#630, #2002, #2040, #2044, #1617, #2045, #2055, #2056, #2022,
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#2052, #1552, #1999, #1507, #2054, #1970, #1968, #662, #1910,
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#1694, #1999, #1409, #2150, #2127, #2155, #1983, #2014, #2222,
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#1067, #2136, #2065, #1430, #2173, #2212, #1871, #2147, #1199,
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#2273, #428, #992, #815, #2024, #2292, #2125, #2139, #2291, #2174,
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#2306, #2228, #2309, #2319, #2317, #2313, #2154, #1985, #1201
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- twisted.internet.task.Cooperator (Added along with #1701).
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- Errors in UDP protocols no longer unbind the UDP port (#1695).
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- Misc: #1717, #1705, #1563, #1719, #1721, #1722, #1728.
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- twisted-dev-mode's F9 now uses trial's --testmodule feature, rather than
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trying to guess what tests to run. This will break files using the "-x"
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test-case-name hack (just use a comma separated list instead).
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- API Documentation improvements.
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- A new Producer/Consumer guide (#53)
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- Better-defined error behavior in IReactorMulticast (#1578)
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- IOCP Multicast support (#1500)
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- Improved STDIO support on Windows. (#1553)
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- LoopingCall supports Deferreds such that it will wait until a
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Deferred has fired before rescheduling the next call (#1487)
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- Added twisted.python.versions.Version, a structured representation
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of Version information, including support for SVN revision numbers
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- Many trial fixes, as usual
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- All API documentation is now correctly formatted as epytext (#1545)
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- twisted.python.filepath.FilePath.__repr__ is safer.
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- Fix trial's "until-failure" mode. (#1453)
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- deferredGenerator now no longer causes handled exceptions (or
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results) to propagate to the resulting Deferred (#1709).
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- Misc: #1483, #1495, #1503, #1532, #1539, #1559, #1509, #1538,
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#1571, #1331, #1561, #737, #1562, #1573, #1594, #1607, #1407, #1615,
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#1645, #1634, #1620, #1664, #1666, #1650, #1670, #1675, #1692, #1710,
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- Removal of already-deprecated trial APIs: the assertions module,
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util.deferredResult, util.deferredError, util.fireWhenDoneFunc,
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util.spinUntil, util.spinWhile, util.extract_tb,
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util.format_exception, util.suppress_warnings, unittest.wait,
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- The backwards compatibility layer of twisted.python.components
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(e.g., backwardsCompatImplements, fixClassImplements, etc) has been
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disabled. The functions still exist, but do nothing as to not break
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user code outright (#1511)
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- Deprecate the usage of the 'default' argument as a keyword argument
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in Interface.__call__. Passing a second positional argument to
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specify the default return value of the adaptation is still
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- Twisted no longer works with Python 2.2
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- FTP server supports more clients
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- Process support on Windows
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- twisted.internet.stdio improved (including Windows support!)
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- Continued Trial refactoring
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- Default trial reporter is verbose black&white when color isn't supported
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- Deferreds returned in trial tests that don't fire before the
187
unittest timeout now have their errback fired with a TimeoutError
188
- raising SkipTest in setUp and setUpClass skips tests
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- Test suites are failed if there are import errors
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- Fixed infinite loops in datagramReceived edge cases
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- Issues resolved: 654, 773, 998, 1005, 1008, 1116, 1123, 1198, 1221,
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1232, 1233, 1236, 1240, 1244, 1258, 1263, 1265, 1266, 1271, 1275,
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1293, 1294, 1298, 1308, 1316, 1317, 1321, 1341, 1344, 1353, 1359,
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1372, 1374, 1377, 1379, 1380, 1385, 1388, 1389, 1413, 1422, 1426,
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1434, 1435, 1448, 1449, 1456
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- spinWhile and spinUntil
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- extract_tb and format_exception
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- util.suppressWarnings
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- threadedselectreactor, a reactor which potentially makes
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integration with foreign event loops much simpler.
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- major improvements to twisted.conch.insults, including many new widgets.
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- adbapi ConnectionPools now have 'runWithConnection' which is
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similar to runInteraction but gives you a connection object instead of
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- __file__ is now usable in tac files
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- twisted.cred.pamauth now contains a PAM checker (moved from twisted.conch)
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- twisted.protocols.policies.LimitTotalConnectionsFactory now exists,
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which does as the name suggests
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- twisted.protocols.ident now uses /proc/net/tcp on Linux [233]
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- trial now recurses packages by default (a la the old -R parameter)
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- (PB) Calling a remote method that doesn't exist now raises
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NoSuchMethod instead of AttributeError.
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- FTP client and server improvements
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- Trial improvements: The code is now much simpler, and more stable.
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- twisted.protocols.basic.FileSender now works with empty files
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- Twisted should now be much more usable on Pythons without thread support.
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- minor improvements to process code in win32eventreactor
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- twistd -y (--python) now implies -o (--nosave). [539]
240
- improved lockfile handling especially with respect to unix sockets.
241
- deferredGenerator now no longer overuses the stack, which sometimes
242
caused stack overflows.
243
- Failure.raiseException now at least always raises the correct Exception.
244
- minor improvements to serialport code
248
- twisted.python.componts.getAdapter. Use IFoo(o) instead.
249
- Adapter persistence (IFoo(x, persist=True)). Just don't use it.
250
- log.debug. It was equivalent to log.msg(), just use that.
251
- twisted.protocols.telnet. twisted.conch.telnet replaces it.
252
- Setting a trial reporter using a flag to 'trial'. Instead of 'trial
253
--bwverbose', for example, use 'trial --reporter=bwverbose'.
254
- trial --coverage will become a flag in Twisted 2.2.
255
- passing a fully-qualified python name to --reporter is
256
deprecated. Pass only names of Reporter plugins.
258
- trial -R (--recurse) is now the default, so passing it is deprecated.
259
- trial --reporter-args. Use the plugin system to do this sort of thing.
260
- trial.assertions.assertionMethod and trial.unittest.assertionMethod
261
are both deprecated. Use instance methods on TestCases instead.
262
- trial's deferredResult, deferredError, and wait functions. Return
263
Deferreds from your test methods instead of using them.
264
- Raising unittest.SkipTest with no arguments. Give a reason for your skip.
265
- The Failure returned from a gatherResults and DeferredList is now
266
of type FirstError instead of a tuple of (Exception, index). It
267
supports a firstError[idx] syntax but that is deprecated. Use
268
firstError.subFailure and firstError.index instead.
269
- whenThreaded now simply calls the passed function synchronously.
273
Minor bug fix release.
275
SVN rev (file) - [bug number] description
276
-----------------------------------------
277
13307 (twisted/topfiles/README) - Mention support for python 2.4, too
278
13324 (twisted/internet/defer.py) - [947] Fix DeferredQueue backlog/size limit.
279
13354 (twisted/plugins/__init__.py) - Correct maintainer address.
280
13355 (twisted/test/test_defer.py) - improvements to DeferredQueue test case
281
13387 (setup.py) - add news to list of subprojects to install
282
13332 (twisted/internet/posixbase.py) - Fix spelling error
283
13366 (twisted/internet/qtreactor.py) - [957] [954] reactor.iterate fixes
284
13368 (twisted/test/test_internet.py) - Fix DelayedCall test case
285
13422 (twisted/internet/posixbase.py) - Remove log from _Win32Waker creation.
286
13437 (twisted/plugin.py) - [958] Only write cache if there were changes.
287
13666 (twisted/internet/gtkreactor.py,gtk2reactor.py) - Don't run callbacks
288
until the reactor is actually up and running
289
13748 (twisted/internet/gtk2reactor.py) - [552] [994] Initialize threading properly.
297
- Replaced home-grown components system with zope.interface.
298
- Split Twisted into multiple pieces.
299
- Relicensed: Now under the MIT license, rather than LGPL.
300
- Python 2.4 compatibility fixes
301
- Major efficiency improvements in TCP buffering algorithm.
302
- Major efficiency improvements in reactor.callLater/DelayedCall.
303
- Half-close support for TCP/SSL. (loseWriteConnection).
305
Miscellaneous features/fixes
306
----------------------------
307
- New plugin system: twisted.plugin
308
- Better debugging support. Control-C will break you into PDB.
309
- The twistd command has --uid --gid command line arguments.
310
- *Incompatibility: mktap defaults to not change UID/GID, instead of saving
311
the invoking user's UID/GID.
312
- Removed some functions that were deprecated since Twisted 1.0.
313
- ZSH tab-completion for twisted commands.
315
- More correct daemonization in twistd.
316
- twisted.python.log: do not close the log because of invalid format string.
317
- Disabled automatic import of cBanana.
318
- Boolean support for twisted.persisted.marmalade.
319
- Refactor of plugin and application HOWTO documentation
320
- Async HOWTO expanded greatly.
321
- twisted.python.usage outputs the actual defaults, not passed in values.
325
- Rewritten, a bunch of bugs fixed, a few more added.
329
- Multi-listen UDP multicast support
330
- protocol.ClientCreator has a connectSSL.
331
- defer.deferredGenerator: allows you to write Deferred code w/o callbacks.
332
- Deferred.setTimeout is now deprecated.
333
- New defer.DeferredLock/DeferredSemaphore/DeferredQueue.
334
- Add utils.getProcessOutputAndValue to get stdout/err/value.
336
- Default DNS resolver is now non-blocking.
337
- Increased default TCP accept backlog from 5 to 50.
338
- Make buffering large amounts of TCP data work on Windows.
339
- Fixed SSL disconnect to not wait for remote host. Fixes issue with firefox.
340
- Separate state for Deferred finalization so that GC-loops preventing
341
finalization don't occur.
342
- Many Process bugfixes
343
- Processes spawned on windows can successfully use sockets
344
- gtk2reactor can optionally use glib event loop instead of gtk
345
- gtk2reactor notifies gobject to initialize thread support
346
- Fix registering a streaming producer on a transport.
347
- Close client sockets explicitly after failed connections.
348
- ReconnectingClientFactory now continues attempting to reconnect after all
349
errors, not just those which are not UserErrors.
353
- Portforward doesn't start reading from a client until a connection is made.
354
- Bugfixes in twisted.protocols.loopback
355
- Improve speed of twisted.protocols.LineReceiver.
356
- LineReceiver implements IProducer. (stop/pause/resumeProducing)
357
- SOCKSv4 properly closes connections
361
- Add "new connection" callback to adbapi.ConnectionPool to allow for
362
custom db connection setup (cp_openfun)
363
- adbapi.ConnectionPool automatic reconnection support
364
- Don't log exceptions extraneously
370
- Address objects for IPv4 and Unix addresses throughout twisted.internet.
371
- Improved connected UDP APIs.
372
- Refactored SSH client support.
373
- Initial implementation of Windows I/O Completion Ports event loop.
374
- Bug fixes and feature enhancements.
375
- Nevow support for Lore (so your Lore documents can use Nevow directives).
376
- This is the last release before Twisted begins splitting up.
added
removed
src/twisted/topfiles/NEWS
